Image display device

Abstract

Provided is an image display device, including: a first flexible substrate; and a circuit-forming layer constituting an image display area, the circuit-forming layer being made to adhere to one of surfaces of the first flexible substrate, in which, when the first flexible substrate has a thickness of t2, the circuit-forming layer has a thickness of t1 satisfying the following Equation (1): t1≧3/40×(t2-23)  (1).

1 . An image display device, comprising:
 a first flexible substrate; and   a circuit-forming layer constituting an image display area, the circuit-forming layer being made to adhere to one of surfaces of the first flexible substrate,   wherein, when the first flexible substrate has a thickness of t2, the circuit-forming layer has a thickness of t1 satisfying the following Equation (1):
   t1≧3/40×(t2-23)  (1). 
   
   
   
       2 . The image display device according to  claim 1 , wherein:
 the circuit-forming layer includes a plurality of pixels arranged in matrix in plan view; and   each of the pixels includes:
 at least a thin film transistor turned ON by a scanning signal from a gate bus line; and 
 an electrode to which a video signal from a drain bus line is supplied through the turned-ON thin film transistor. 
   
   
   
       3 . The image display device according to  claim 2 , wherein the circuit-forming layer is formed of a laminate obtained by depositing a conductor layer patterned by photolithography, an insulator layer, and a semiconductor layer in a predetermined order. 
   
   
       4 . The image display device according to  claim 3 , wherein the insulator layer includes at least any one of a silicon oxide film and a silicon nitride film. 
   
   
       5 . The image display device according to  claim 1 , wherein the first flexible substrate is made of polyimide. 
   
   
       6 . The image display device according to  claim 1 , wherein the first flexible substrate is made of polystyrene. 
   
   
       7 . The image display device according to  claim 1 , further comprising a second flexible substrate provided on the surface of the first flexible substrate, on which the circuit-forming layer is formed, so as to be opposed thereto,
 wherein the first flexible substrate and the second flexible substrate interpose liquid crystal therebetween, to thereby constitute a liquid crystal display device.   
   
   
       8 . The image display device according to  claim 1 , further comprising a second flexible substrate serving as a sealing substrate is provided on the surface of the first flexible substrate, on which the circuit-forming layer is formed, to thereby constitute an organic EL display device.